Solid-Lubrication with Continous Replenishment by Catalytically Generated Carbon and Related Means

催化生成碳连续补充的固体润滑及相关方法

• 批准号: 8712891
• 负责人: James Lauer
• 金额: $ 9.67万
• 依托单位: Rensselaer Polytechnic Institute
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-09-01 至 1990-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8712891&HistoricalAwards=false
• 关键词: Solid; Lubrication; Continous; Replenishment; Catalytically

Catalytic surfaces for hydrocarbon cracking and dehydrogenation have been known in the petroleum industry to become inactive after some use because of carbon or "coke" coating. The proposed research is directed toward using such coatings, preferably produced under conditions simulating the environment of such operating machinery as the "adiabatic" diesel engine, as self-replenishing solid lubricants. Continued wear of the carbon coatings would maintain catalytic activity of the substrate. The operating temperatures in the piston-ring/cylinder area of such a diesel engine and the preferred temperature of catalytic coke generation by some transition metals happen to coincide in the 500-600 C range. Adsorption of combustion chamber gases on these carbons would further reduce friction and wear. The same transition metals, in alloys or in or on ceramics are also close to hydrocarbons. The suggested research program will use pin-on-disk testers on reproducibly prepared samples and determine the friction and wear rates, rates of carbon formation and rates of carbon oxidation to help guide the design and materials selection for high temperature lubrication in an engine environment.

众所周知，石油工业中用于烃裂化和脱氢的催化表面在使用一段时间后会由于碳或“焦炭”涂层而变得不活泼。 所提出的研究旨在使用这种涂层作为自补充固体润滑剂，优选地在模拟诸如“绝热”柴油发动机的操作机械的环境的条件下生产。 碳涂层的持续磨损将保持基材的催化活性。 这种柴油发动机的活塞环/气缸区域的工作温度和一些过渡金属催化生焦的优选温度恰好在500-600℃范围内重合。 这些碳上燃烧室气体的吸附将进一步减少摩擦和磨损。 合金中或陶瓷中或陶瓷上的相同过渡金属也接近碳氢化合物。 建议的研究计划将使用销盘测试仪对可重复制备的样品进行测试，并确定摩擦和磨损率、碳形成率和碳氧化率，以帮助指导发动机环境中高温润滑的设计和材料选择。